Ammonium bicarbonate is colorless rhombic or monoclnic crystals or white crystalline powder with anti caking agent&period; The relative density is 1&period;58 and the melting point is at 107&period;5 degree centigrade&period; It is easily soluble in water&comma; readily forming an alkaline solution&period; &lpar;The density of saturated solution is 11&period;9g&sol;100ml a 0 degree centigrade an 27g&sol;100ml t 30 degree centigrade&period; &rpar; The PH value of 0&period;08&percnt; solution is 7&period;8&period; It is soluble in gycerin&period; It decomposes int carbon dioxide ad mmonia&period; Its hygroscopicity is strng andafter moisture-absorbing it gives off the irritating smell of ammonia which is not present when th material is dry&period; It easil effloresces in the air&period;

It is mainly used as avanced food baking powder&period; It is empoyed together with sodium bicarbonate as a constituent of swelling agent for bread&comma; biscuit and pancake&period; And also it is raw material for foamed juice&period; It is used in rinsing in boiling water for green vegetables and bamboo shoot an in medicine and reragents&period;